Boiler-feed purifier.



s. BESSONOPP.

BOILER FEED PURIFIER.

APPLICATION FILED D110. 16, 1912.

1,081,935, Patented Dec. 16, 1913.

3 SHEETS-SHEET 1.

Witnesses.-

S. BESSONOFF.

BOILER FEED PURIPIER.

APPLIUATION 21mm DBO.16, 1912.

1,081,985. Patented Dec; 16, 1913,

3 SHEETS-811E311 2.

H I H Wigwam: Inventor- J. WM ?cr A t torney.

COLUMBIA PLANOGEMH CU.,WASHINOTON. D. C.

Patented Dec. 16, 1913.

3 SHEETS-SHEET 3.

' Igwntor er if;

w torne'y Witnesses CLM/w NTTE SERGIUS BEsSONOFF, O BAVLQVSK, ST.PETERSBURG, RUSSIA.

BOILER-FEED PURIFIER.

Specification of Letters Patent.

Application filed December 16, 1912.

Patented Dec. 16,1913.

set-m1 No. 737,111.

To all whom it may concern Be it known that I, Snnorus Bnssoxori asubject of the Emperor of Russia, residing at l Katherinastrasse,Pavlovsk, near St. Petersl'iurg, .in the Empire of Russia, have inventeda certain new and use ful Improvementin Boiler-Feed Purifiers, of whichthe following is a specification.

The present invention has for its object an apparatus which is arrangedin the boiler below the water level for elin'iinating the boiler scalein the feed water by heating the latter by means of steam bubbles whichascend in the water chamber and are received by the apparatus in such amanner that the steam passes through the entire mass of the .water whichfills the apparatus, so that the water is heated to a temperatureapproximating the boiling point in the boiler. The boiler scale whichdeposits on the bottom of the apparatus in a powdered condition isperiodically discharged therefrom by means of discharge pipes arrangedin the apparatus. The steam bubbles ascending in the water chamber arecollected by the troughs or plates which are arranged within the waterchamber, the collected steam escaping through a longitudinal slotapproximately half way up the apparatus. This slot is of such a sizethat only the quantity of the steam resulting from the single bubblesentering the apparatus from below can pass through it. As a result ofthis, the steam on the face of the slot is at a pressure higher thanthat in the steam chamloer, and therefore it is able to penetrate themass of water which fills the apparatus, while, on the other hand, thewater will not circulate downward through the slot.

The invention is illustrated in the accompanying drawing, in which:

Figures 1 and 2 represent the thermic ap paratus arranged in a boiler invertical cross section. Fig. 3 is a vertical longitudinal section on theline 3-3 Fig. 1, and Fig. 4 is a horizontal section on the line 4t-tFig. 2.

The apparatus embodying the invention preferably consists of threeparallel series of boxes A, A etc., of the cross section illustrated inFig. 1, the ends of which are inserted one within the other. These boxesare fixed in the boiler below the water level in any convenient manner,for example as represented in the drawing, by placing the separate boxeson two parallel angle irons to which each box 1S secured by means ofscrews. The angle irons themselves are fixed to the flanges of thetines. All the middle boxes present only longitudinal walls, but the twoextreme boxes have end walls. The boxes taper slightly or are restrictedto one end, so that they may be fitted one within the other. The bottomof this apparatus comprises recesses which merge upward into threelongitudinal slots (1, Z) and c. The outside slots a and 0 have strips(Z and at a certain distance above them, while a channel or trough g isfixed above the middle slot Z) on uprights s s, the front ends of thechannel or trough g being connected with the feed pipe It through whichthe feed water is supplied. Two pipes Z: and Z each closed at one endare arranged in the recesses at the bottom of the two lower troughs.These pipes are provided with perforations throughout their entirelength and are branched off a single pipe 7- which passes outside theboiler and is provided with a cock m.

The apparatus described above operates in the following manner :Thewater which is supplied through an appropriate feed water apparatuspasses through the feed pipe it into the channel 7 from which itoverflows more or less uniformly over the upper edges into the troughsor boxes located on each side of the channel 9. The steam collecting onthe heating surface of the boiler in the planes of the slots a, I) and cis at a pressure which is higher than the pressure which prevails in thesteam chamber of the boiler, as already explained. It is therefore ableto overcome a certain amount of resistance and to penetrate through theentire quantity of water which fills the apparatus, while 'the water isunable to pass through the slots in opposition to the current of steam.As experiments have demonstrated, water which contains salts forminghard boiler scale, when heated by the direct introduction of steam,deposits this boiler scale in the form of a very fine amorphous powder.The heated water (from which the boiler scale has already beenseparated) is gradually forced from the apparatus owing to the waterleaving the channel 9 and flows over the upper part of the apparatusinto the common water chamber of the boiler. The steam in excess whichhas not condensed in the apparatus passes from the latter into the steamchamber of the boiler. The boiler scale separated from the water isperiodically discharged through the pipes k and Z by opening a dischargecock m.

As the entire apparatus is located in the water chamber of the boilerthe driving forces which impel the Water which fills it to pass into thewater chamber are inconsiderable, because they represent merelydifferences between the specific weights of the hotter and the coolerwater.

The several parts of the apparatus do not require tight joints, it beingsuflicient to insert the end of one into the end of the other.

What I claim and desire to secure by Let ters Patent of the UnitedStates is 1. A feed water apparatus for boilers, comprising a pluralityof troughs extending longitudinally of the boiler and located below thewater level of the boiler, means for supplying water to said troughsalong substantially their entire length, means for directing steam ontothe contents of said troughs said means extending along a side of eachof said troughs, and means for removing the powdered material collectingin said troughs.

2. A feed water apparatus for boilers,

Copies of this patent may be obtained for comprising an upper trough,means for feeding water thereto, a lower trough arranged on each side ofsaid upper trough and adapted to contain the water overflowing fromsame, means for collecting steam rising through the boiler, means fordirecting such collected steam onto the water contained in the saidlower troughs, and perforated conduits located in the said lower troughsto remove the material deposited therein.

3. A feed water apparatus for boilers, comprising an upper trough, meansfor feeding water thereto, a lower trough located at each side of saidupper trough, the under surface of said troughs being formed to collectthe steam rising through the boiler, and plates located adjacent to anedge of each of said lower troughs and eX- tending for the entire lengthof same, said plates serving to direct the collected steam onto thewater within said lower troughs.

In testimony whereof I aflix my signature in presence of two witnesses.

SERGIUS BESSONOFF.

Witnesses:

ALEXANDER N. TsOI-IENALEFF, F. A. LOVIAGUINE.

five cents each, by addressing the Commissioner of Patents, Washington,D. G.

